[PDF][PDF] Exploring trends, status of research and the impact of covid-19: A mixed-methods approach
U Schmalz, A Paula, L Preisa, M Kleiserb - crisis, 2021 - researchgate.net
Air transport operates in an environment of constant changes with trends driving the overall
system. This research detects key trends, examines the status of research and explores how …
system. This research detects key trends, examines the status of research and explores how …